SLK/R170 What after market anti-freeze mixes well with OEM fluid ?

Jul 8, 2008 | 08:51 PM

Thunderstrike

Thread Starter

Newbie

Joined: Jun 2008

Posts: 1

Likes: 0

SLK230

What after market anti-freeze mixes well with OEM fluid ?

I have 1998 SLK230, 4 cyl, and was wondering if there's a special anti-freeze I need to get that will mix well with OEM fluid.

Thanks for the reply in advance.

Jul 10, 2008 | 04:40 PM

bazzle

Senior Member

Joined: Apr 2005

Posts: 374

Likes: 3

IMO its never a good idea to mix AF.
Ive seen them turn to gell.
For the cost its best to completely drain, flush with water and refill with MB AF.
Some brands do state suitable for MB.
Your call there.

Bazzle

Jul 10, 2008 | 05:17 PM

Musikmann

MBWorld Fanatic!

Joined: Mar 2006

Posts: 1,627

Likes: 5

From: West Virginia

2001 E320 RWD - Brilliant Silver/Ash: 100,000+

Ditto to bazzle. Depending on what you have in there now, you might be able to use one of the Zerex fluids that meets MB specs. If you don't know, change it all and use OEM MB. It doesn't cost that much even at a dealer. FWIW, on my car MB recommends a complete coolant change every 3 years.